The ST7LITE3 is a member of the ST7 microcontroller family. All ST7 devices are based on a common industry-standard 8-bit core, featuring an enhanced instruction set.TheST7LITE3 features FLASH memory with byte-by-byte In-Circuit Programming (ICP) and In-Application Programming (IAP) capability. Under software control, the ST7LITE3 device can be placed in WAIT, SLOW, or HALT mode, reducing power consumption when the application is in idle or standby state.The enhanced instruction set and addressing modes of the ST7 offer both power and flexibility to software developers, enabling the design of highly efficient and compact application code. In addition to standard 8-bit data management, all ST7 microcontrollers feature true bit manipulation, 8×8 unsigned multiplication and indirect addressing modes.
Memories 8 Kbytes program memory: single voltage extended Flash (XFlash) Program memory with read-out protection, In-Circuit Programming and In-Application programming (ICP and IAP), data retention: 20 years at 55°C. 384 bytes RAM 256 bytes data EEPROM with read-out protection. 300K write/erase cycles guaranteed, data retention: 20 years at 55°C.
Clock, Reset and Supply Management Enhanced reset system Enhanced low voltage supervisor (LVD) for main supply and an auxiliary voltage detector (AVD) with interrupt capability for implementing safe power-down procedures Clock sources: Internal RC 1% oscillator, crystal/ceramic resonator or external clock Optional x4 or x8 PLL for 4 or 8 MHz internal clock Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt
I/O Ports Up to 15 multifunctional bidirectional I/O lines 7 high sink outputs
5 Timers Configurable Watchdog Timer Two 8-bit Lite Timers with prescaler, 1 realtime base and 1 input capture Two 12-bit Auto-reload Timers with 4 PWM outputs, input capture and output compare functions
2 Communication Interfaces Master/slave LINSCI™ asynchronous serial interface SPI synchronous serial interface
Interrupt Management 10 interrupt vectors plus TRAP and RESET 12 external interrupt lines (on 4 vectors)
A/D Converter 7 input channels 10-bit resolution
Instruction Set 8-bit data manipulation63 basic instructions with illegal opcode detection17 main addressing modes8 x 8 unsigned multiply instructions
Development Tools Full hardware/software development package DM (Debug module)
